<template>
  <!-- #ifdef H5 -->
  <thead class="uni-table-thead">
    <tr class="uni-table-tr">
      <th :rowspan="rowspan" colspan="1" class="checkbox" :class="{ 'tr-table--border': border }">
        <table-checkbox :indeterminate="indeterminate" :checked="checked" @checkboxSelected="checkboxSelected"></table-checkbox>
      </th>
    </tr>
    <slot></slot>
  </thead>
  <!-- #endif -->
  <!-- #ifndef H5 -->
  <view class="uni-table-thead"><slot></slot></view>
  <!-- #endif -->
</template>

<script lang="ts">
import tableCheckbox from "../uni-tr/table-checkbox.vue";
export default {
  name: "uniThead",
  components: {
    tableCheckbox,
  },
  options: {
    virtualHost: true,
  },
  data() {
    return {
      border: false,
      selection: false,
      rowspan: 1,
      indeterminate: false,
      checked: false,
    };
  },
  created() {
    this.root = this.getTable();
    // #ifdef H5
    this.root.theadChildren = this;
    // #endif
    this.border = this.root.border;
    this.selection = this.root.type;
  },
  methods: {
    init(self) {
      this.rowspan++;
    },
    checkboxSelected(e) {
      this.indeterminate = false;
      const backIndexData = this.root.backIndexData;
      const data = this.root.trChildren.filter((v) => !v.disabled && v.keyValue);
      if (backIndexData.length === data.length) {
        this.checked = false;
        this.root.clearSelection();
      } else {
        this.checked = true;
        this.root.selectionAll();
      }
    },
    /**
     * 获取父元素实例
     */
    getTable(name = "uniTable") {
      let parent = this.$parent;
      let parentName = parent.$options.name;
      while (parentName !== name) {
        parent = parent.$parent;
        if (!parent) return false;
        parentName = parent.$options.name;
      }
      return parent;
    },
  },
};
</script>

<style lang="scss">
$border-color: #ebeef5;

.uni-table-thead {
  display: table-header-group;
}

.uni-table-tr {
  /* #ifndef APP-NVUE */
  display: table-row;
  transition: all 0.3s;
  box-sizing: border-box;
  /* #endif */
  border: 1px red solid;
  background-color: #fafafa;
}

.checkbox {
  padding: 0 8px;
  width: 26px;
  padding-left: 12px;
  /* #ifndef APP-NVUE */
  display: table-cell;
  vertical-align: middle;
  /* #endif */
  color: #333;
  font-weight: 500;
  border-bottom: 1px $border-color solid;
  font-size: 14px;
  // text-align: center;
}

.tr-table--border {
  border-right: 1px $border-color solid;
}

/* #ifndef APP-NVUE */
.uni-table-tr {
  ::v-deep .uni-table-th {
    &.table--border:last-child {
      // border-right: none;
    }
  }

  ::v-deep .uni-table-td {
    &.table--border:last-child {
      // border-right: none;
    }
  }
}

/* #endif */
</style>
